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Sur d’autres sites (10206)

  • how split audio file in multiple chapters with predefined times

    30 mars 2019, par Karim Bn Abdlaziz

    how split audio book file with in 10 chapters easier to listen , with given metadata predefined times
    0.000000, 3472.683000 seconds this ch0

    3472.683000, 7642.058000 ch1

    etc..

    2 columns the begin and end of each chapter,

    i’m dummy but tried and failed with awk to add columns right and left to obtain the command line

        ffmpeg -i output.mp3  -acodec copy -ss  begin -to end  ch'number'.mp3.

    the problemn with the NF position and then increment numbers of new output files

    how to use awk or sed and count new file names ch01 ch02 etc

  • Split videos to chunks using Rails and streamio-ffmpeg

    29 septembre 2021, par Nasser FN

    I've followed this tutorial both parts 1 & 2,https://www.randygirard.com/how-to-create-a-video-upload-platform-using-ruby-on-rails-part-2/

    


    so now I am able to upload videos, convert them to mp4 and display them to the user, but the problem is I want to split the uploaded videos to chunks of 30 seconds each and

    


    return them to the user so he/she can use them for whatsapp status.

    


    This' my main goal !

    


    As I've mentioned earlier, i followed the tutorial above, all I need is how to integrate

    


    and use https://github.com/streamio/streamio-ffmpeg in my rails code for splitting videos

    


    to chunks. Thanks !

    


  • How to use ffmpeg to split a video and then merge it smoothly ? [duplicate]

    16 juin 2017, par leandro moreira

    This question is an exact duplicate of :

    The idea is to split a video into n segments and process them separated and when the process is done to merge the segments into a full video.

    I tried using the following approach :

    ```

    // spliting
    
ffmpeg -i video.mp4 -c:v copy -c:a copy -ss 0 -t 10 video_0_10.mp4
    
ffmpeg -i video.mp4 -c:v copy -c:a copy -ss 10 -t 20 video_10_20.mp4
    

    
vim video_list.txt (with all files)
    

    
// joining (merging them)
    
ffmpeg -f concat -safe 0 -i video_list.txt -c:v copy -c:a copy new_video.mp4

    ```

    But when I tried to play the new_video.mp4 it didn’t play (using VLC) smooth, it froze seemly at the moment of the joining.

    What’s the best way to split a bigger video into several smaller, work on them and after joining the smaller into a new ?

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